/*
 * Copyright 2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.maven.wrapper.cli;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class CommandLineOption {
  private final Set<String> options = new HashSet<String>();

  private Class<?> argumentType = Void.TYPE;

  private String description;

  private String subcommand;

  private String deprecationWarning;

  private boolean incubating;

  public CommandLineOption(Iterable<String> options) {
    for (String option : options) {
      this.options.add(option);
    }
  }

  public Set<String> getOptions() {
    return options;
  }

  public CommandLineOption hasArgument() {
    argumentType = String.class;
    return this;
  }

  public CommandLineOption hasArguments() {
    argumentType = List.class;
    return this;
  }

  public String getSubcommand() {
    return subcommand;
  }

  public CommandLineOption mapsToSubcommand(String command) {
    this.subcommand = command;
    return this;
  }

  public String getDescription() {
    StringBuilder result = new StringBuilder();
    if (description != null) {
      result.append(description);
    }
    if (deprecationWarning != null) {
      if (result.length() > 0) {
        result.append(' ');
      }
      result.append("[deprecated - ");
      result.append(deprecationWarning);
      result.append("]");
    }
    if (incubating) {
      if (result.length() > 0) {
        result.append(' ');
      }
      result.append("[incubating]");
    }
    return result.toString();
  }

  public CommandLineOption hasDescription(String description) {
    this.description = description;
    return this;
  }

  public boolean getAllowsArguments() {
    return argumentType != Void.TYPE;
  }

  public boolean getAllowsMultipleArguments() {
    return argumentType == List.class;
  }

  public CommandLineOption deprecated(String deprecationWarning) {
    this.deprecationWarning = deprecationWarning;
    return this;
  }

  public CommandLineOption incubating() {
    incubating = true;
    return this;
  }

  public String getDeprecationWarning() {
    return deprecationWarning;
  }
}
